MyEclipse配置Spring框架（基础篇）

Posted 2022-02-02 yehuan

一、新建项目，添加spring的相关jar包等

二、创建相关类以及属性和方法

Student.java

package com.yh;

public class Student implements People 
    
    private Course course;
    @Override
    public void breath() 
        // TODO Auto-generated method stub
        System.out.println("呼吸");
    
    public Course getCourse() 
        return course;
    
    public void setCourse(Course course) 
        this.course = course;
    

 

三、配置xml文件

自动装配方法一：设置autowire（这里为byName）

<?xml version="1.0" encoding="UTF-8"?>
<beans
    xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:p="http://www.springframework.org/schema/p"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.1.xsd">
    
    <bean id="student" class="com.yh.Student" autowire="byName"></bean>
    
    <bean id="course" class="com.yh.Course"></bean>

</beans>

装配方法：Student类的成员变量名对应bean的id。

自动装配方法二：

<?xml version="1.0" encoding="UTF-8"?>
<beans
    xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:p="http://www.springframework.org/schema/p"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.1.xsd">

    <bean id="student" class="com.yh.Student">
        <property name="course" ref="course"></property>
    </bean>
    
    <bean id="course" class="com.yh.Course"></bean>

</beans>

装配方法：name对应Student类中名为course的成员变量，ref对应当前xml文件中id为course的bean。

 

四、编写测试类

package com.yh;

import org.junit.*;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class SpringDemoTest 

    @Test
    public void demo01()
        String xmlPath="applicationContext.xml";
        ApplicationContext context = new ClassPathXmlApplicationContext(xmlPath);
        Student stu = (Student)context.getBean("student");
        stu.breath();
        stu.getCourse().showCourse();